Improvement in brick-machines



3 Sheets--Sheet i.

A. MORAND.

Improvement in Brick-Machines N0. 131,021. Patented Sep.3,1872.

FISH.

WITBEEB km um I 9mm MW 3 Sheets--S heet 2.

Patented Sep.3,1872- A. M'ORAND.

Improvement in Brick-Machines.

3 Sheets "Sheet 3. A. MORAND.

Improvement in Brick-Machines.

N0. 13] 02]. Patented Sp.3,1872.

FREE) W MMLC Q X M WWW UNITED STATES PATENT OFFICE.

AUGUSTUS MORAND, or BROOKLYN, NEW roux.

IMPROVEMENT IN BRICK-MACHINES.

Specification forming part of Letters Patent No. 131,021, dated September 3, 1872.

SPECIFICATION.

I, AUGUSTUS Momm), of Brooklymin the county of Kings and State of New York, have invented Improvements in Brick-Machines, of which the following is a specification:

Myinvention relates to that class of machines having a horizontally rotating mold-wheel or table, combined with a vertical pug-mill placed over said table, and more especially to the improved machine for which I obtained Letters Patent of the United States numbered 116,341, and dated June 27, 1871. Said invention consists in forming a small aperture in the pressure-plate (or the thrust-block above) at such distance from its edges as that the central portion of the brick shall pass under said aperture just at the time it receives its most severe pressure; the object of this part of my invention being to provide a central escape for the surplus clay which otherwise would force itself out between the pressure-plate or thrust-block and the table, leaving the edges of the brick more or less ragged and rough, and clogging and impeding the movement of the machine. In the accompanying drawing, Figure 1 is a back elevation of myimproved brick-machine Fig. 2, a central vertical section thereofin line a: a: of Fig. 1; Fig. 3, a plan view of the machine, partly in horizontal section; Fig. 4, a vertical section in line w w of Fig. 3, illustrating the construction and arrangement of the steam-chamber over the pressure-plate and of the waste-aperture therein.

A is the base-plate; B, the upright frame or standard; 0, the pug-mill; and D, the moldwheel or table of my improved brick-machine, constructed substantially as described in the Letters Patent granted to me June 27, 1871. E is the pug-mill shaft, and F a wormwvheel thereon. G is a worm or screw secured upon a horizontal driving-shaft, H, and geared in connection with the worm-wheel F. M is a worm or screw formed or secured upon a lower or other hard metal, formed or secured upon the under side of the block K to form aface therefor, and which rests upon the revolving table D so as to cover the molds therein successively as they pass from under the pug-mill. d d, Figs. 2 and 3, are molds formed in the table D; and q q, Fig. 2, are pistons or followers working up closely and accurately into said molds, and provided with friction-rollers g on their lower ends to work upon, and against a circular incline-plate or cam-way below. I, Fig. 2, is the circular cam-plate or incline-way of the machine, secured horizontally upon the bed-plate A beneath the table D, and formed, first, with an upward incline immediately under the thrust-block K, so that the followers q q, in passing over it during the revolution of the table, will be partially forced up into their molds so soon as said molds pass from the pug-mill out under the pressure-plate of the thrust-block forthepurposeofcompressingthebricksformed therein; secondly, with a horizontal plane succeeding the first incline, so that the pressure shall cease so soon as the front edge of the mold has reached the outer edge of the pressureblock; thirdly, with a second upward incline to cause the followers to rise in the molds after the molds have passed out entirely clear of the pressure-plate, and thus to lift the bricks entirely out of the molds; and, finally, with a downward incline on the opposite side of the circle, to allow the followers to fall preparatory to a refilling of the molds. W is a hollow chamber formed in the thrust-block K, as illusof using the exhaust from the enginefor the purpose as described. Bythus admitting steam or hot air into the thrust-block its pressureplate K is kept heated so that the clay in the molds will not adhere thereto, and thus the friction of the machine is very materially diminished. S is a small orifice or aperture formed in the pressure-plate K at such a point as that the central portion of the brick shall pass under it while undergoing pressure between the cam-actuated followers (1 below and the pressure-plate K above. Over this orifice S, and within the thrust-block K, I place a tube, 8, so inclined as to extend to the upper outer edge of the thrust-block and there open into a discharge-pipe, T; or it may be extended up vertically through the thrust-block to open outwardly upon its upper surface, By means of this orifice S an outlet is supplied for any excess of clay in the mold-at the moment of compression, and this excess, instead of being forced out at the edges of the mold between the table and the pressure-plate, clogging and impeding the operations of themachine and V impairing the perfection of the edges of the Witnesses:

NLATTHIAS BANTEE, JAS. F. CURTIS. 

